Question 20
The graph below shows the duration of the major ice ages in the Earth’s history.
Chronology from the Student’s Book: Huronian 2.4–2.1 billion years ago; Cryogenian 850–635 million years ago; Andean–Saharan 460–430 million years ago; Late Paleozoic 360–260 million years ago; Quaternary 2.6 million years ago–present.
Which is the oldest major ice age and how long did it last?
Chronology from the Student’s Book: Huronian 2.4–2.1 billion years ago; Cryogenian 850–635 million years ago; Andean–Saharan 460–430 million years ago; Late Paleozoic 360–260 million years ago; Quaternary 2.6 million years ago–present.
Which is the oldest major ice age and how long did it last?
